import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
df = pd.read_excel('某公司各部门1—2月份实际支出.xlsx')
plt.figure(figsize=(8,4))
plt.rcParams['font.sans-serif'] ='SimHei'
plt.title('某公司各部门1—2月份实际支出簇状柱形图')
plt.ylabel('实际支出（元）')
x_data = np.arange(len(df['部门']))
height_data = [ ]
height_data.append(df['1月'])
height_data.append(df['2月'])
width = 0.4
for i in range(len(height_data)):
     x = x_data + i * width
     height = height_data[i]
     plt.bar(x, height,width)
     for a, b in zip(x, height):
         plt.text(a, b,'%d''%b', ha ='center')
plt.xticks(x_data +0.2, df['部门'])
plt.legend(('1月', '2月'))
plt.show()